Level shifting hot swappable I2C-bus and SMBus bus buffer

General description The PCA9512A is a hot swappable I2C-bus and SMBus buffer that allows I/O card insertion into a live backplane without corruption of the data and clock buses and includes two dedicated supply voltage pins to provide level shifting between 3.3 V and 5 V systems while maintaining

文件：320.97 Kbytes 頁數(shù)：27 Pages

PHI

PHI

Level shifting hot swappable I2C-bus and SMBus bus buffer

文件：235.41 Kbytes 頁數(shù)：24 Pages

恩XP

電平切換可熱插拔的I2C總線和SMBus總線緩沖器

PCA9512A/B是一款熱交換I2C總線和SMBus緩沖器，允許將I/O卡插入帶電背板而不會損壞數(shù)據(jù)和時鐘總線并附帶兩個專用供電電壓引腳以在保持每個電壓電平最佳噪音容限的同時提供3.3 V和5 V系統(tǒng)之間的電平切換。任一引腳均可以2.7 V至5.5 V的供電電壓供電，不限制哪個供電電壓更高?？刂齐娐窌乐贡嘲暹B接到卡上，直至背板上出現(xiàn)停止位或總線閑置且卡上沒有總線沖突。當(dāng)連接建立時，PCA9512A/B提供雙向緩沖，保持背板和卡電容隔離。\n如果VCC和VCC2同時上升，則可使用PCA9512A或PCA9512B ，但如果VCC和VCC2上升之間的間隔不同，則只應(yīng)使用PCA9512B。\nP SDA和SCL線路的雙向緩沖器會增加扇出并防止在多點背板系統(tǒng)中進(jìn)行帶電板卡插入和拔出時發(fā)生SDA和SCL惡化。\n兼容I2C總線標(biāo)準(zhǔn)模式、I2C總線快速模式和SMBus標(biāo)準(zhǔn)\n所有SDA和SCL線路（閾值為0.6 V）上的內(nèi)置ΔV/Δt上升時間加速器在輕負(fù)載系統(tǒng)中都能夠通過的ACC引腳禁用ΔV/Δt上升時間加速器，并要求總線上拉電壓和相應(yīng)的供電電壓（VCC或VCC2）相同。\n帶有最佳噪音容限的5 V至3.3 V電平變換\nVCC或VCC2 = 0 V時SDAn和SCLn引腳為高阻抗\n所有SDAn和SCLn引腳上有1 V預(yù)充電\n支持時鐘展寬以及多主器件仲裁和同步\n工作電源電壓范圍：2.7;

恩XP

Level shifting hot swappable I2C and SMBus buffer

DESCRIPTION The PCA9512 is a hot swappable I2C and SMBus buffer that allows I/O card insertion into a live backplane without corruption of the data and clock buses and includes two dedicated supply voltage pins to provide level shifting between 3.3 V and 5 V systems while maintaining the best n

文件：176.15 Kbytes 頁數(shù)：16 Pages

PHI

PHI

Level shifting hot swappable I2C and SMBus buffer

DESCRIPTION The PCA9512 is a hot swappable I2C and SMBus buffer that allows I/O card insertion into a live backplane without corruption of the data and clock buses and includes two dedicated supply voltage pins to provide level shifting between 3.3 V and 5 V systems while maintaining the best n

文件：176.15 Kbytes 頁數(shù)：16 Pages

PHI

PHI

72W/Port Gigabit EEPoE Midspan Family for High Power Terminals

文件：788.01 Kbytes 頁數(shù)：2 Pages

MICROSEMI

美高森美